Laser welding clamp for flat plate type device

Abstract

The flat plate type device is composed of a front cover, a rear cover and a shell which forms an upper circle, a lower circle, a left circle and a right circle, after a device is installed in the shell, the front cover needs to be welded to the shell, the rear cover needs to be welded to the shell, and a closed space is formed by the front cover, the rear cover and the shell; the laser welding clamp comprises two front and rear cover clamps and two shell clamps, the two shell clamps are the same in structure and arranged on the top face and the bottom face of the large-area side of a shell correspondingly, the two front and rear cover clamps are the same in structure and located on the outer sides of a front cover and a rear cover correspondingly, and the two front and rear cover clamps and the two shell clamps are connected into a frame structure through bolts. The front cover and the rear cover are tightly pressed on the shell through the frame structure, and the positions, needing to be welded, of the front cover and the shell and the positions, needing to be welded, of the rear cover and the shell are not shielded by the two front and rear cover clamps and the two shell clamps. It is guaranteed that no gap exists between the front cover, the rear cover and the shell before laser welding, accurate and effective welding can be achieved, and then the sealing effect of the device is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of laser welding, and in particular relates to a laser welding fixture for a flat-plate device. Background Art

[0002] The flat-plate structure device is flat in shape, that is, the length and width are close, and the length-to-height ratio and width-to-height ratio are large. The flat-plate structure device is composed of three parts: the front cover, the shell, and the rear cover. After a specific structure is installed inside, the front cover and the shell, and the rear cover and the shell are welded separately to form a closed space. When welding the front and rear covers and the shell structure, since the length-to-width ratio of the front and rear covers is too large, it is impossible to ensure that the weld meets the penetration depth requirements when using laser welding equipment. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a laser welding fixture for a flat-type device, which ensures that the front and rear covers are firmly welded to the shell structure without deforming the overall structure.

[0004] The present invention is implemented as follows: a laser welding fixture for a flat-type device, the flat-type device is composed of a front cover, a rear cover and a shell that is surrounded by a circle up, down, left and right. After the device is installed inside the shell, the front cover and the shell, and the rear cover and the shell need to be welded respectively, and the three form a closed space. The laser welding fixture includes two front and rear cover fixtures and two shell fixtures. The two shell fixtures have the same structure and are respectively arranged on the top surface and the bottom surface of the large-area side of the shell. The two front and rear cover fixtures have the same structure and are respectively located on the outside of the front cover and the rear cover. The two front and rear cover fixtures and the two shell fixtures are connected to form a frame structure by bolts. The frame structure presses the front cover and the rear cover on the shell, and the welding positions of the front cover and the shell, and the rear cover and the shell of the flat-type device are not blocked by the two front and rear cover fixtures and the two shell fixtures.

[0005] The shell fixture is a flat frame, a row of first screw holes are opened on the outer side of a pair of long sides of the shell fixture, a row of second screw holes are opened on the top surface of the pair of long sides, a pair of short sides of the shell fixture extend outward to form a plurality of mounting short pieces, a first through hole is opened on the mounting short pieces, a plurality of ribs protruding from the plane of the shell fixture are arranged in the flat frame of the shell fixture, a pair of shell fixtures are fixed to the top surface and bottom surface of the large-area side of the shell by screws screwed into the first through holes; the front and rear cover fixtures are flat frames, a row of third screw holes matching the first screw holes of the shell fixture are opened on a pair of long sides of the front and rear cover fixtures, the front and rear cover fixtures are fixed to the shell fixture by first screws screwed into the third screw holes and the first screw holes, and are located on the outer side of the front cover and the rear cover.

[0006] The second screw hole contacts the surface of the housing through the second screw screwed in, so that the housing clamp is fastened to the housing.

[0007] The advantages and positive effects of the present invention are:

[0008] 1. The overall structure can be fixed through simple installation, thereby ensuring the laser welding effect.

[0009] 2. The processing, assembly and disassembly are convenient and flexible, and the operability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the use effect of the laser welding fixture for a flat-plate device of the present invention.

[0011] Figure 2 It is a structural stereogram of the laser welding fixture for a flat-plate device of the present invention.

[0012] Figure 3 It is a schematic diagram of the front and rear cover clamps of the laser welding clamp for a flat-type device of the present invention.

[0013] Figure 4 A schematic diagram of a shell fixture of a laser welding fixture for a flat-plate device according to the present invention. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0015] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "upper", "middle", "lower", "inside", "outside", and "both sides" are based on the orientations or positional relationships shown in the accompanying drawings, and are only simplified descriptions for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1-4As shown, the laser welding fixture for a flat-type device of the present invention comprises a front cover, a rear cover and a shell which is surrounded by a circle up, down, left and right. After the device is installed inside the shell, the front cover and the shell, and the rear cover and the shell need to be welded respectively, and the three form a closed space. The laser welding fixture comprises two front and rear cover fixtures 3 and two shell fixtures 4. The two shell fixtures 4 have the same structure and are respectively arranged on the top and bottom surfaces of the large-area side of the shell 2. The two front and rear cover fixtures 3 have the same structure and are respectively located on the outside of the front cover 1 and the rear cover. The two front and rear cover fixtures 3 and the two shell fixtures 4 are connected to form a frame structure by bolts. The frame structure presses the front cover and the rear cover onto the shell 2. The welding positions of the front cover 1 and the shell 2, and the rear cover and the shell 2 of the flat-type device are not blocked by the two front and rear cover fixtures 3 and the two shell fixtures 4.

[0018] Further, the shell fixture 4 is a flat frame, a row of first screw holes 12 are opened on the outer side of a pair of long sides of the shell fixture 4, a row of second screw holes 13 are opened on the top surface of the pair of long sides, a pair of short sides of the shell fixture 4 extend outward to form a plurality of mounting short pieces 14, a first through hole 11 is opened on the mounting short piece 14, a plurality of ribs 9 protruding from the plane of the shell fixture 4 are arranged in the flat frame of the shell fixture 4, a pair of shell fixtures 4 are fixed to the top and bottom surfaces of the large-area side of the shell 2 by screws 6 screwed into the first through holes 11; the front and rear cover fixtures 3 are flat frames, a row of third screw holes 10 matching the first screw holes 12 of the shell fixture 4 are opened on a pair of long sides of the front and rear cover fixtures 3, the front and rear cover fixtures 3 are fixed to the shell fixture 4 by first screws 5 screwed into the third screw holes 10 and the first screw holes 12, and are located on the outer side of the front cover 1 and the rear cover.

[0019] Furthermore, the second screw hole 13 is in contact with the surface of the housing 2 by the second screw 8 screwed in, so that the housing clamp 4 is fastened to the housing 2 .

[0020] Specifically, in this embodiment, in the entire welding fixture, there are 2 front and rear cover fixtures 3, which are consistent from front to back; 2 shell fixtures 4, which are consistent from top to bottom; the first screw 5 connecting the front and rear cover fixtures and the shell fixture is clamped in the front and rear cover fixtures 3 through its own nut limit, and the two fixtures are connected through the thread, a total of 16; the shell fixture connecting screw 6, a total of 8; the shell fixture connecting bolt 7, combined with the connecting screw 6, is used to connect the upper and lower shell fixtures, a total of 16; the shell second screw 8 plays a role in limiting the deformation of the front and rear covers, a total of 32. In addition, the flat-type device front cover 1, the rear cover; the flat-type device shell 2, the two are ensured to be embedded in each other through the concave and convex settings, which is convenient for laser welding of the connection area after using the welding fixture.

[0021] During use, first connect a set of front and rear cover clamps 3 with two sets of shell clamps 4 through the first screw 5 to limit the position, then use the shell clamps 4 together with the screw 6 and the bolt 7 to fix the 8 positions, then connect another set of front and rear cover clamps 3 with the two sets of shell clamps 4 through the first screw 5, and finally install and tighten the second screws 8 in sequence from both sides to the middle.

[0022] The present invention firmly constrains the flat-plate device by cooperating the front and rear cover clamps, the shell clamps with screws, screw rods and bolts to ensure that there is no gap between the front and rear covers and the shell before laser welding, thereby achieving accurate and effective welding and ensuring the sealing effect of the device.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser welding fixture for a flat-type device, which consists of a front cover, a rear cover and a shell that surrounds the upper, lower, left and right circles. After the device is installed inside the shell, the front cover and the shell, and the rear cover and the shell need to be welded separately to form a closed space. The feature is that: The laser welding fixture comprises two front and rear cover fixtures (3) and two shell fixtures (4); the two shell fixtures (4) have the same structure and are respectively arranged on the top surface and the bottom surface of the large-area side of the shell (2); the two front and rear cover fixtures (3) have the same structure and are respectively located on the outside of the front cover (1) and the rear cover; the two front and rear cover fixtures (3) and the two shell fixtures (4) are connected to form a frame structure by bolts; the frame structure presses the front cover and the rear cover onto the shell (2); and the welding positions of the front cover (1) and the shell (2) and the rear cover and the shell (2) of the flat-panel device are not blocked by the two front and rear cover fixtures (3) and the two shell fixtures (4).

2. The laser welding fixture for a flat-plate device according to claim 1, characterized in that: The housing fixture (4) is a flat frame, a row of first screw holes (12) are formed on the outer sides of a pair of long sides of the housing fixture (4), a row of second screw holes (13) are formed on the top surface of the pair of long sides, a pair of short sides of the housing fixture (4) extend outward to form a plurality of mounting short pieces (14), a first through hole (11) is formed on the mounting short pieces (14), a plurality of ribs (9) protruding from the plane of the housing fixture (4) are arranged in the flat frame of the housing fixture (4), a pair of housing fixtures (4) are screwed into the first The screw rod (6) of the through hole (11) is fixed to the top and bottom surfaces of the large-area side of the shell (2); the front and rear cover clamps (3) are flat frame, and a row of third screw holes (10) matching the first screw holes (12) of the shell clamp (4) are opened on a pair of long sides of the front and rear cover clamps (3); the front and rear cover clamps (3) are fixed to the shell clamp (4) by screwing the first screws (5) into the third screw holes (10) and the first screw holes (12), and are located on the outside of the front cover (1) and the rear cover.

3. The laser welding fixture for a flat-plate device according to claim 2, characterized in that: The second screw hole (13) contacts the surface of the housing (2) by means of the second screw (8) screwed in, thereby fastening the housing clamp (4) to the housing (2).

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